2.1 Before InstallationGeneral Installation 35Wiring PrecautionsBe sure to follow these instructions when wiring the unit:a) Do not wire the telephone cable in parallel with an AC power source, computer, telex,etc. If the cables are run near those wires, shield the cables with metal tubing or useshielded cables and ground the shields.b) If cables are run on the floor, use protectors to prevent the wires from being stepped on.Avoid wiring under carpets.c) Avoid using the same power supply outlet for computers, telexes, and other officeequipment. Otherwise, the system operation may be interrupted by the induction noisefrom such equipment.d) Please use one pair telephone wire for extension connection of (telephone) equipmentsuch as single line telephones, data terminals, answering machines, computers, voiceprocessing systems, etc., except Panasonic proprietary telephones (e.g. KX-T7536, KX-T7235).e) The Power Switch of the system must be off during wiring. After all of the wiring iscompleted, turn the Power Switch on.f) Mis-wiring may cause the system to operate improperly. Refer to Section6.1.1 Installation and 6.1.2 Connection.g) If an extension does not operate properly, disconnect the telephone from the extensionline and then connect again, or turn off the Power Switch of the system and then onagain.h) The system is equipped with a 3-wire grounding type plug. This is a safety feature. Ifyou are unable to insert the plug into the outlet, contact your electrician to replace yourobsolete outlet. Do not defeat the purpose of the grounding-type plug.i) Use twisted pair cable for outside line connection.j) Outside lines should be installed with lightning protectors. For details, refer to Section2.3.9 Installation of Lightning Protectors.WARNINGStatic sensitive devices are used. Toprotect printed circuit boards fromstatic electricity, do not touchconnectors indicated to the right.To discharge body static, touchground or wear a grounding strap.Warning: Static sensitive connectorsKX-TD1232KX-TD816